feat: add temp storage shelf (B prefix) UI support

Recognize B-prefix location codes as temp storage shelves. Add purple
color scheme, conflict detection for temp_stored status, and updated
submit/dialog logic for temp storage target handling.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/pages/registration/dialogs/registration_dialogs_part.dart

@@ -97,6 +97,7 @@ extension _RegistrationDialogsPart on _RegistrationPageState {
   void _showLocationConflictDialog({
     required List<PaichaOverviewItem> onShelfItems,
     required List<PaichaOverviewItem> transferredItems,
+    List<PaichaOverviewItem> tempStoredItems = const [],
   }) {
     final contentParts = <Widget>[];
 
@@ -142,6 +143,29 @@ extension _RegistrationDialogsPart on _RegistrationPageState {
       }
     }
 
+    if (tempStoredItems.isNotEmpty) {
+      if (onShelfItems.isNotEmpty || transferredItems.isNotEmpty) {
+        contentParts.add(const Divider());
+        contentParts.add(const SizedBox(height: 4));
+      }
+      contentParts.add(
+        Text(
+          '暂存中',
+          style: TextStyle(
+            fontWeight: FontWeight.bold,
+            color: const Color(0xFF7B1FA2),
+          ),
+        ),
+      );
+      for (final item in tempStoredItems) {
+        contentParts.addAll([
+          Text('总排号：${item.zongpaiNo}'),
+          Text('暂存货位：${item.locationCode ?? "未知"}'),
+          const SizedBox(height: 6),
+        ]);
+      }
+    }
+
     contentParts.add(const SizedBox(height: 4));
     contentParts.add(
       const Text(

lib/pages/registration/parts/registration_overview_part.dart

@@ -19,6 +19,14 @@ extension _RegistrationOverviewPart on _RegistrationPageState {
     );
   }
 
+  /// Find all scanned items that are in temp storage.
+  List<PaichaOverviewItem> _findTempStoredItemsInScanned() {
+    return registration_calculations.findTempStoredItemsInScanned(
+      overview: _overview,
+      zongpaiNos: _zongpaiNos,
+    );
+  }
+
   Future<String?> _baseUrl() async {
     final configService = AppConfigService();
     final baseUrl = await configService.getString('api_url') ?? '';

lib/pages/registration/parts/registration_scan_part.dart

@@ -48,6 +48,7 @@ extension _RegistrationScanPart on _RegistrationPageState {
         _handleZongpaiScan(parsed.value);
       case CodeType.locationNormal:
       case CodeType.locationTransit:
+      case CodeType.locationTempStorage:
         _handleLocationScan(parsed.value, parsed.type);
       case CodeType.invalid:
         _feedbackService.trigger(FeedbackEvent.scanInvalid);

lib/pages/registration/parts/registration_status_part.dart

@@ -52,4 +52,7 @@ extension _RegistrationStatusPart on _RegistrationPageState {
       _zongpaiNos.isNotEmpty && _locationCode != null && !_isSubmitting;
 
   bool get _isTransitTarget => isTransitTarget(_locationType, _locationCode);
+
+  bool get _isTempStorageTarget =>
+      isTempStorageTarget(_locationType, _locationCode);
 }

lib/pages/registration/parts/registration_submit_part.dart

@@ -34,6 +34,23 @@ extension _RegistrationSubmitPart on _RegistrationPageState {
       }
     }
 
+    // For temp storage target: block if any scanned item is transferred or temp_stored
+    // (on_shelf items are allowed — temp storage acts as shelf change)
+    if (_isTempStorageTarget) {
+      final transferredItems = _findTransferredItemsInScanned();
+      final tempStoredItems = _findTempStoredItemsInScanned();
+      if (transferredItems.isNotEmpty || tempStoredItems.isNotEmpty) {
+        setState(() => _isSubmitting = false);
+        _feedbackService.trigger(FeedbackEvent.submitFailure);
+        _showLocationConflictDialog(
+          onShelfItems: [],
+          transferredItems: transferredItems,
+          tempStoredItems: tempStoredItems,
+        );
+        return;
+      }
+    }
+
     if (_mode == RegistrationMode.multiCode && _zongpaiNos.length > 1) {
       if (_isTransitTarget && !await _ensureBatchSamePaicha(baseUrl)) {
         if (!mounted) return;
@@ -47,7 +64,7 @@ extension _RegistrationSubmitPart on _RegistrationPageState {
         return;
       }
       // Pre-check: block entire batch if any item already has a location binding
-      if (!_isTransitTarget) {
+      if (!_isTransitTarget && !_isTempStorageTarget) {
         final onShelfItems = _findOnShelfItemsInScanned();
         final transferredItems = _findTransferredItemsInScanned();
         if (onShelfItems.isNotEmpty || transferredItems.isNotEmpty) {
@@ -117,13 +134,15 @@ extension _RegistrationSubmitPart on _RegistrationPageState {
       }
       setState(() {
         _zongpaiNos.remove(zongpaiNo);
-        if (_mode == RegistrationMode.singleCode) {
+        if (_mode == RegistrationMode.singleCode && !_isTempStorageTarget) {
           _locationCode = null;
           _locationType = null;
         }
       });
       final msg = result.isOffShelfSuccess
           ? '下架成功'
+          : _isTempStorageTarget
+          ? '变更货架成功'
           : (_mode == RegistrationMode.multiCode ? '多码上架模式，请扫描下一张执行卡' : '上架成功');
       _showStatusOverride(
         msg,

lib/pages/registration/registration_calculations.dart

@@ -5,11 +5,13 @@ class RegistrationOverviewStats {
   final int totalCount;
   final int shelvedCount;
   final int transferredCount;
+  final int tempStoredCount;
 
   const RegistrationOverviewStats({
     required this.totalCount,
     required this.shelvedCount,
     required this.transferredCount,
+    required this.tempStoredCount,
   });
 }
 
@@ -31,17 +33,21 @@ RegistrationOverviewStats overviewStats(PaichaOverviewResult? overview) {
       totalCount: 0,
       shelvedCount: 0,
       transferredCount: 0,
+      tempStoredCount: 0,
     );
   }
 
   var shelvedCount = 0;
   var transferredCount = 0;
+  var tempStoredCount = 0;
   for (final item in overview!.items) {
     switch (item.status) {
       case 'on_shelf':
         shelvedCount++;
       case 'transferred':
         transferredCount++;
+      case 'temp_stored':
+        tempStoredCount++;
     }
   }
 
@@ -49,6 +55,7 @@ RegistrationOverviewStats overviewStats(PaichaOverviewResult? overview) {
     totalCount: overview.totalCount,
     shelvedCount: shelvedCount,
     transferredCount: transferredCount,
+    tempStoredCount: tempStoredCount,
   );
 }
 
@@ -91,6 +98,17 @@ List<PaichaOverviewItem> findTransferredItemsInScanned({
   );
 }
 
+List<PaichaOverviewItem> findTempStoredItemsInScanned({
+  required PaichaOverviewResult? overview,
+  required Iterable<String> zongpaiNos,
+}) {
+  return _findScannedItemsByStatus(
+    overview: overview,
+    zongpaiNos: zongpaiNos,
+    status: 'temp_stored',
+  );
+}
+
 bool hasAnyLocatedInScanned({
   required PaichaOverviewResult? overview,
   required Iterable<String> zongpaiNos,
@@ -100,7 +118,9 @@ bool hasAnyLocatedInScanned({
   return overview!.items.any(
     (item) =>
         scannedSet.contains(item.zongpaiNo) &&
-        (item.status == 'on_shelf' || item.status == 'transferred'),
+        (item.status == 'on_shelf' ||
+            item.status == 'transferred' ||
+            item.status == 'temp_stored'),
   );
 }
 
@@ -108,10 +128,13 @@ Color registrationBarColor({
   required String status,
   required bool isScanned,
   required bool isTransitTarget,
+  bool isTempStorageTarget = false,
 }) {
   if (isScanned) {
     final isConflict = isTransitTarget
         ? status == 'transferred'
+        : isTempStorageTarget
+        ? (status == 'transferred' || status == 'temp_stored')
         : (status == 'on_shelf' || status == 'transferred');
     return isConflict ? Colors.red : const Color(0xFF43A047);
   }
@@ -119,6 +142,8 @@ Color registrationBarColor({
   switch (status) {
     case 'on_shelf':
       return const Color(0xFF2196F3);
+    case 'temp_stored':
+      return const Color(0xFF7B1FA2);
     case 'transferred':
       return const Color(0xFFFF9800);
     default:
@@ -130,10 +155,13 @@ Color registrationRowBgColor({
   required String status,
   required bool isScanned,
   required bool isTransitTarget,
+  bool isTempStorageTarget = false,
 }) {
   if (isScanned) {
     final isConflict = isTransitTarget
         ? status == 'transferred'
+        : isTempStorageTarget
+        ? (status == 'transferred' || status == 'temp_stored')
         : (status == 'on_shelf' || status == 'transferred');
     return isConflict ? Colors.red.shade50 : const Color(0xFFF1F8E9);
   }
@@ -141,6 +169,8 @@ Color registrationRowBgColor({
   switch (status) {
     case 'on_shelf':
       return const Color(0xFFE3F2FD);
+    case 'temp_stored':
+      return const Color(0xFFF3E5F5);
     case 'transferred':
       return const Color(0xFFFFF3E0);
     default:

lib/pages/registration/widgets/registration_widgets_part.dart

@@ -5,11 +5,13 @@ part of '../../registration_page.dart';
 extension _RegistrationWidgetsPart on _RegistrationPageState {
   String _locationLabel(CodeType? type) {
     if (type == CodeType.locationTransit) return '转运区域';
+    if (type == CodeType.locationTempStorage) return '暂存货架';
     return '普通货架';
   }
 
   Color _locationLabelColor(CodeType? type) {
     if (type == CodeType.locationTransit) return Colors.orange;
+    if (type == CodeType.locationTempStorage) return const Color(0xFF7B1FA2);
     return Colors.blue;
   }
 
@@ -108,6 +110,12 @@ extension _RegistrationWidgetsPart on _RegistrationPageState {
                       const Color(0xFFE65100),
                       hasData,
                     ),
+                    _buildStatTag(
+                      '暂存 ${stats.tempStoredCount}',
+                      const Color(0xFFF3E5F5),
+                      const Color(0xFF7B1FA2),
+                      hasData,
+                    ),
                   ],
                 ),
               ],
@@ -293,11 +301,13 @@ extension _RegistrationWidgetsPart on _RegistrationPageState {
       status: item.status,
       isScanned: isScanned,
       isTransitTarget: _isTransitTarget,
+      isTempStorageTarget: _isTempStorageTarget,
     );
     final bgColor = registration_calculations.registrationRowBgColor(
       status: item.status,
       isScanned: isScanned,
       isTransitTarget: _isTransitTarget,
+      isTempStorageTarget: _isTempStorageTarget,
     );
 
     return Container(

lib/services/code_parser.dart

@@ -1,14 +1,8 @@
 // lib/services/code_parser.dart
 class CodeParser {
-  static final _zongpaiRegex = RegExp(
-    r'^\d{2}(B|C|T)\d+$|^\d{2}(BW|CW)\d{4}$',
-  );
-  static final _locationRegex = RegExp(
-    r'^[A-Z0-9]+-[A-Z0-9]+-[A-Z0-9]+$',
-  );
-  static final _transitRegex = RegExp(
-    r'^TRANS-',
-  );
+  static final _zongpaiRegex = RegExp(r'^\d{2}(B|C|T)\d+$|^\d{2}(BW|CW)\d{4}$');
+  static final _locationRegex = RegExp(r'^[A-Z0-9]+-[A-Z0-9]+-[A-Z0-9]+$');
+  static final _transitRegex = RegExp(r'^TRANS-');
 
   static ParseResult parse(String code) {
     final trimmed = code.trim();
@@ -23,16 +17,30 @@ class CodeParser {
       return ParseResult(type: CodeType.zongpaiNo, value: normalized);
     }
     if (_locationRegex.hasMatch(normalized)) {
+      if (normalized.startsWith('B')) {
+        return ParseResult(
+          type: CodeType.locationTempStorage,
+          value: normalized,
+        );
+      }
       return ParseResult(type: CodeType.locationNormal, value: normalized);
     }
     return ParseResult(type: CodeType.invalid, value: code);
   }
 
   static bool isLocation(CodeType type) =>
-      type == CodeType.locationNormal || type == CodeType.locationTransit;
+      type == CodeType.locationNormal ||
+      type == CodeType.locationTransit ||
+      type == CodeType.locationTempStorage;
 }
 
-enum CodeType { zongpaiNo, locationNormal, locationTransit, invalid }
+enum CodeType {
+  zongpaiNo,
+  locationNormal,
+  locationTransit,
+  locationTempStorage,
+  invalid,
+}
 
 class ParseResult {
   final CodeType type;

lib/services/registration_linking.dart

@@ -8,13 +8,20 @@ bool isTransitTarget(CodeType? locationType, String? locationCode) {
       (locationCode?.startsWith('TRANS-') ?? false);
 }
 
+bool isTempStorageTarget(CodeType? locationType, String? locationCode) {
+  return locationType == CodeType.locationTempStorage ||
+      (locationCode?.startsWith('B') ?? false);
+}
+
 String registrationSubmitLabel({
   required bool isTransitTarget,
   required bool isMultiCode,
   required int zongpaiCount,
 }) {
   if (!isTransitTarget) {
-    return isMultiCode && zongpaiCount > 1 ? '批量上架（$zongpaiCount 条）' : '确 认 上 架';
+    return isMultiCode && zongpaiCount > 1
+        ? '批量上架（$zongpaiCount 条）'
+        : '确 认 上 架';
   }
   return isMultiCode && zongpaiCount > 1 ? '批量转运并凑箱（$zongpaiCount 条）' : '转运并装箱';
 }